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(No Model.) 2 sneetssh'eet 2. E. DAWSON.

VI'SE.

No. 412,166 Patented Oct. 1', 1889.

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' UNITED STATES PATENT OEErcE.

EDlVARD DAXVSON, OF TERRE HAUTE, INDIANA, ASSIGNOR OF ONE-HALF TO PETER N. STAFF, OF SAME PLACE.

VISE.

SPECIFICATION forming part of Letters Patent No. 412,166, dated October 1, 1889. Application filed April 2, 1889. Serial No. 305,708. (No model.)

To all whom it may concern: E are the grips which are let into the jaws. Be it known that I, EDWARD DAWSON, a Each jaw is provided with an incline 61 near citizen of the United States, residing at Terre the top and a steeper incline d beneath it. I-Iaute, in the county of Vigo and State of In- Each grip has a flange E at the top, which 5 diana, have invented certain new and useful rests upon an incline d, and the grip slopes Improvements in Vises; and I do hereby deaway from the bottom of its face and bears clare the following to be a full, clear, and against the under side of the incline d, with exact description of the invention, such as its bottom resting on the shouldere on the will enable others skilled in the art to which jaw. IO it appertains to make and use the same. F are screws or rivets which secure the This invention relates to Vises; and it 0011- grips to the jaws. As each grip bears downsists in the novel construction and combinawardly upon the jaw at the two places cl and tion of the parts hereinafter fully described 6 the strain is distributed and the jaws are and'claiined. little liable to work loose when the vise is I 5 In the drawings, Figure 1 is a longitudinal used for heavy chipping. The steep inclines section through the vise. Fig. 2 is a front d keep the grips down to their bearings and View of the same. Fig. 3 is adetail side view afiord a means of adjustment, as the metal of the split ring for retaining the screw, and behind the grip-faces can be filed away until Fig. 4 is a front view of the same. Fig. 5 is the grips lit tightly against the inclines d and 20 a cross-section on line a; cc in Fig. 1. Fig. 6 shoulders e.

is a detail side view of the lower half-nut and F is the vise-screw provided with the head nut-stock. Fig. 7 is a detail plan view of the f, having holes f in its periphery. The viseplate under the cam-sleeve. Fig. 8 is a side screw works in the channel 9 in the slide D view showing an upper half-nut added to the and is journaled in the flange G at the front 7 5 2 5 lower half-nut and nut-stock. Fig. 9 is a longiof the sliding jaw.

tudinal section through the same, and Fig. Y H is a tubular handle for turning the vise- 10 is a cross-section on line :1 y in Fig. 8. screw.

A is the stationary jaw of the vise, pro- H is a bolt which slides in the tubular vided with the flange A at its base and the handle H and engages with either of the ;0 central boss 0. projecting downwardly from holes f in the vise-screw head. The bolt H said flange. is provided with a spindle h, of smaller diam- B is a stud screwed into bossaand provided eter than the bolt, and said spindle projects with the nut 11 for securing the vise to the through the nut 71., which is screwed into the bench B. A stationary circular plate G is end of the tube.

5 interposed between the flange A and the I is a spring, which surrounds the spindle bench, and is provided with the hole 0 for 7L inside the tube and presses the sliding bolt the boss to pivot in, so that the vise can be into the holes in the screw-head. swiveled around and secured in any desired 1 is a button on the projecting end of the position by tightening the nut b. spindle, so that the bolt can easily be drawn o 0 O is a handle provided with a yoke at one back.

end for turning the nut 12, to which it is per- The handle H is provided with a socket c,

inanently pivoted by the pins 0, which prowhich encircles the head of the vise-screw and ject inwardly from the ends of the yoke and permits the handle to be turned around to engage with holes in the opposite sides of any convenient position before it is coupled 45 the nut. The handle can be folded on its to the screw-head by the sliding bolt. A nut pivots in either direction, so as to be in con- 2" upon the end of the vise-screw keeps the venient position for operating the nut, as socket of the handle from slipping off the said shown by the dotted lines in Fig. 1. screw-head.

D is the sliding jaw of the vise, which is J is a beveled collar on the vise-screw iin- I00 50 provided with the slide D ,working back and inediately behind the head f. forth in the stationary jaw. J is a split retaining-ring provided with a beveled recess for the collar J to turn in. The ring J is cut into two parts, so that it may be slipped over the beveled collar, and the said ring is held in the recess 3' in the vise-jaw by the plate K at the top, which is secured to the jaw by the screw 70. The ring J is divided by the beveled cut j, as shown in Fig. 3, so that the lower half of the ring is overlapped by the upper half and thereby held in the recess. An oil-hole K is drilled through the ring behind the plate K, so that the vise-screw heating can be oiled after first removing the plate K. When the plate K is in place, it engages with the beveled portion k on ring J and keeps the ring from turning, as well as prevents the oil-hole from becoming stopped up with dirt or filings.

L is the segmental nut, which engages with the under side of the vise-screw and bears against the ends of the rectangular cavity L in the stationary jaw.

' In order that the vise may have what is known as a quick action, the segmental nut is raised and lowered into and out of gear with the vise-screw in the following manner: The nut proper L is provided with a dovetailed recess Z in its under side. M is the nutstock engaging with the said dovetailed recess and provided with the cheeks m, one of which has a lug m. The nut is made removable from the nut-stock, so that it may be made of softer metal than the nut-stock and be easily replaced when it becomes worn from contact with the thread of the vise-screw. N is a double cam-sleeve, the ends of which abut against the ends of cavity L, and Z is a plate under the said cam-sleeve in the bottom of the cavity. N is the operating-rod for the cam-sleeve, which is provided with a hole in which the said rod may slide freely in a longitudinal direction. A flat n is formed on the rod N, and a projection n in the hole of the cam-sleeve engages with this flat, so that the cam-sleeve may be turned by the rod, or the cam-sleeve may be splined to the said rod, or otherwise connected to it, so as to accomplish the same result. The rod N is journaled in the holes 0 in the flange A of the stationary jaw, and its front end passes through the hole 0 in the flange G at the front of the sliding jaw. Atriggero is secured to the end of rod N for turning it, and ois a stop on flange G, which prevents the trigger from being turned too far around. P is a spring, which is let into the recess p in flange G around the rod N. Oneend of this spring is secured to the flange and the other end to the trigger, so that the torsion of the spring keeps the nut in engagement with the visescrew, as shown in the drawings. When the trigger is turned so as to turn the double earn a quarter of a revolution,the side of the camsleeve strikes against the lug m on one of the cheeks of the nut-stock and obliges the nut'to descend out of gear with the vise-screw if it has not previously descended by its own weight. When the operating-rod is turned inthe reverse direction by the spring or by hand, the double cam-sleeve presses against the plate Z under it and against the under side of the nut-stock above it, and the nut is raised into gear with the vise-screw without any bending strain being brought upon the. operating-rod. In Figs. 8, 9, and 10 two segmental half-nuts are shown, one beneath the vise-screw and the other above it. That part of the nut beneath the screw is raised and lowered by the cam-sleeve in a similar manner to the half-nut hereinbefore described. The upper part B of the nut is provided with the dovetailed recess 7', and its nut-stock S engages with said recess,'so that the nut can be renewed when worn. The nut-stock S is provided with cheeks s, which extend down' wardly at each end of the cheeks m of the lower nut-stock and upon each side of the nut and are joined onto the plate Z underthe double cam-sleeve. T are projections consisting of screws or pegs which project through the sides of the cheeks s. The camsleeve strikes against the projecting ends of these screws and raises the upper half-nut at the same time as the opposite side of it strikes against the lug m on the stock of the lower half of the nut and depresses the said lower half-nut.

The nuts may be removably secured to the nut-stocks in many other ways besides by means of the dovetail-joints above described, and the dovetailed projection of the lower nut-stock may be made of the same length as the cheeks, if desired, instead of being nearly as long as the nut, as this will make the parts easier to put together. The proj ect-ions T may also be cast solid with the nut stock, if desired, instead of being screws pro jecting through its side cheek. V

This vise is specially adapted for jewelers use and for fine work generally. It will hold either wood or metal equally well, and may be made out of any material preferred.

What I claim is- 1. The combination, with the vise-screw provided with a beveled collar, of the circular retaining-rim g formed of two separate parts having overlapping beveled ends and secured in a circular recess in the sliding jaw and provided with a circular beveled recess for the said collar to revolve in, substantially as set forth. I

2. The combination, with the vise-screw provided with a beveled collar, of the circular retaining-ring adapted to fit into a circular recess in the sliding jaw, and formed of two separate parts having overlapping beveled ends, and having a circular beveled recess for the said collar to turn in, the upper part being further provided with an oil-hole and a beveled portion at its outer edge, and a removable plate secured to the vise-jaw and engaging with the beveled portionon the edge of the ring and'covering the oil-hole, substantially as set forth. 7

3. In a vise, the combination, with the IIO vise-screw, of the segmental nut arranged beneath it and provided with a nut-stock having cheeks m and the lug m, the revoluble double cam-sleeve for raising the nut- 5 stock, the segmental nut arranged above the said visescrew and provided with cheeks 5, extending downwardly at each end of the said cheeks m upon each side of the screw and joined onto a plate under the cam for to receiving the reverse thrust of the said cam,

and the projections T on the said cheeks s for the cam to strike against, substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

EDWARD DAWSON. Witnesses:

GEORGE BURT, G. T. NOBLE. 

